Q6. A commuter backs her car out of her garage with an acceleration of 1.40 m/s(a) How long does it take her to reach a speed of 2.00 m/s? (b) If she then brakes to a stop in 0.800 s, what is her deceleration? (1.4s, 2.5m/s^2) Q7. A car is driving along the highway when its driver sees a traffic jam ahead. The driver hits the brakes, causing a uniform acceleration of magnitude 2.0 m/s^2, and reduces the speed of the car to 10.0 m/s over 1.20 s. What was the displacement of the car during the 1.20 s that it was slowing down? (13.4 m) Q8. A marble is launched up a ramp with a spring-loaded cannon. 2.0 s after losing contact with the cannon, the marble has traveled 2.3 m up the ramp and has a velocity of 0.8 m/s directed up the ramp. What was the velocity of the marble at the instant it left contact with the cannon? You may assume that the marble had uniform acceleration after leaving the cannon. (1.5m/s) Q9. A panther paces up and down in a straight line along a small lake, waiting for his prey to appear for a drink. Create a position vs. time graph for the panther: 1. The panther starts at position -xi = 5.0 m 2. The panther paces forward with a speed of 2.0 m/s for 5.0 s 3. He then remains stationary for 10.0 s 4. The panther paces backward with a speed of 0.5 m/s for 10.0 s 5. Finally, the panther paces backward with a speed of 1.5 m/s for 5.0 s